Diether was a second year physical therapy student at De La Salle University in Dasmarinas, Cavite, when he was bitten by the show biz bug. It was his grandmother, who had urged him to take up physical therapy.
He also dabbles in photography and used to take classical guitar lessons at the Yamaha School of Music. But all those activities have taken a backseat to his steadily rising show biz career.
"Diet" as he is fondly called in showbiz circles was born in Bacoor,Cavite and studied in De La Salle University-Dasmariñas. He started in show-business as a member of ABS CBN's circle of homegrown talents named Star Magic. Ocampo holds the record of starring in eleven teleseryes, more than any other actor in Philippine television history.
In front of the microphone, he is also known as “Capt. Mongrel” with his band, “Blow”. While keeping his frontman duties, Ocampo’s band members are Kessenth "Col. Cabron " Cheng (lead guitars), Emil Buencamino (percussion), Jasper “Pepe” Ong (co-vocals), and Empi K. Martinez aka "Obi Wakantoti" (bass). The band has two albums to date, Nice & Hard (2003) and Rock Manila (2005).
Currently he is active in charity works through his K.I.D.S. Foundation to help under privileged children of Metro Manila. He is also an animal right's advocate by being a spokesperson of the international group called the People for the Ethical Treatment of Animals or P.E.T.A, and he is also one of the owners of a locally circulated magazine for men called Uno.
|2005||Nasaan Ka Man||Ito|
|2004||Bcuz of U||RJ|
|2004||Volta||Atty. Lloyd Ventura|
|2001||Ano bang meron ka?||Jason|
|2001||La Vida Rosa||Dado|
|2000||Gusto ko ng Lumigaya||Leo|
|2000||Bukas Na Lang Kita Mamahalin||Jimboy|
|1999||Gimik: The Reunion||Gary Ballesteros|
|1999||Mula Sa Puso: The Movie||Michael Miranda|
|1998||Dahil Mahal Na Mahal Kita||Ryan|
|1997||Calvento Files: The Movie||Rodolfo|
|2008||Maalaala Mo Kaya: Robot||Alex|
|2008||Iisa Pa Lamang||Miguel Castillejos|
|2007||Princess Sarah||Master Brandon Crissford|
|2007||Maalaala Mo Kaya: Blue Rose||Lester|
|2007||Sineserye Presents: Palimos ng Pag-ibig||Rodel|
|2007||Love Spell: Click na Click||Josh|
|2006||Star Magic Presents: The Game of Love||Gary|
|2006||Komiks: Bahay ng Lagim|
|2006||Star Magic Presents: Windows to the Heart||Dennis|
|2005||Ikaw Ang Lahat Sa Akin||Ivan Ynares|
|2005||Bora: Sons of the Beach||Ditoy|
|2004||'Til Death Do Us Part||Manuel|
|2003||Sana'y Wala Nang Wakas||Leonardo Madrigal|
|2001||Recuerdo de Amor||Paulo Jose Villafuerte|
|1999||Saan Ka Man Naroroon||Bart|
|1997||Mula Sa Puso||Michael Miranda|
|1996||Super Laff In||Host/Himself|
|2007||Palimos ng Pag-ibig (TV series)||Best Drama Actor (nominee)||PMPC STAR AWARDS FOR TV|
|2006||Ikaw Ang Lahat Sa Akin||Best Drama Actor (winner)||PMPC STAR AWARDS FOR TV|
|2006||Nasaan Ka Man||Best Supporting Actor (winner)||GAWAD TANGLAW|
|2006||Nasaan Ka Man||Best Supporting Actor (nominee)||PASADO|
|2004||Sanay Wala Nang Wakas||Best Drama Actor (winner)||PMPC STAR AWARDS FOR TV|
|2002||La Vida Rosa||Best Actor (nominee)||GAWAD URIAN|
|2002||La Vida Rosa||Best Actor (nominee)||FILM ACADEMY OF THE PHILIPPINES|